The image displays several scar with fibrin at the cardias. The portal venous system, formed by the confluence of the superior mesenteric vein and the splenic vein ( drains the stomach, the large and small intestine, the pancreas, and the spleen. An important feature of this system is that a number of its tributaries also communicate with the systemic circulation. These include the intrinsic and extrinsic veins of the gastroesophageal junction; hemorrhoidal veins of the anal canal; paraumbilical veins and the recanalized falciform ligament; the splenic venous bed and the left renal vein; and the retroperitoneum. In portal hypertension, these venous collaterals dilate and allow portal venous blood to return to the systemic circulation.
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